CN202304516U

CN202304516U - Ground source heat exchanger

Info

Publication number: CN202304516U
Application number: CN201120387897XU
Authority: CN
Inventors: 祝长宇; 丁式平
Original assignee: Beijing Deneng Hengxin Technology Co Ltd
Current assignee: Beijing Deneng Hengxin Technology Co Ltd
Priority date: 2011-10-13
Filing date: 2011-10-13
Publication date: 2012-07-04
Anticipated expiration: 2021-10-13

Abstract

The utility model relates to a ground source heat exchanger, which mainly consists of a liquid guide pipe, a three-way valve, a liquid inlet pipe, a liquid pump, a liquid outlet pipe, a gas guide pipe, an annular liquid spraying pipe, an underground heat conducting pipe and some heat conducting accessories, wherein the lower end of the underground heat conducting pipe extends into an underground thermostat layer, the gas guide pipe is connected with the upper part of the underground heat conducting pipe, the liquid outlet pipe is inserted into the underground heat conducting pipe at the lateral side of the gas guide pipe and directly reaches the bottom of the underground heat conducting pipe, the lower end of the liquid outlet pipe is connected with a waterproof liquid pump, the liquid inlet pipe is inserted from the edge of the upper end of the sealed heat conducting pipe and is connected with the annular liquid spraying pipe, and the liquid inlet pipe and the liquid outlet pipe are converged and communicated with the liquid guide pipe through the three-way valve above the ground, so a vertical underground heat exchange system for collecting ground source energy through condensing media is formed. Through the improvement, the evaporation problem caused by pressure reduction generated during the existing condensing agent pumping can be avoided.

Description

A kind of ground source heat interchanger

Technical field

The present invention relates to a kind of subterranean heat exchanger of earth source air conditioner, particularly a kind of ground source heat interchanger.

Background technology

Along with improving constantly of science and technology development and living standards of the people, people require increasingly highly to the amenity degree, and heating, the required energy consumption of cooling shared proportion in total energy consumes is increasing.Because the increase of fuel use amount has increased the weight of the environmental pollution in the global range.Now reasonable use too with ability, regenerative resources such as source ability become inevitable choice.

Currently mainly be divided into soil source air-conditioning and underground water source air-conditioning dual mode for the utilization in source, shallow-layer ground for the earth source air conditioner in field of air conditioning.The underground system of soil source air-conditioning needs boring on the ground, and U type enclosed heat exchanger is set in the hole, from surrounding soil, absorbs energy, because pipeline and soil heat-transfer effect are bad, needs the hole of brill a lot, and initial cost is very high, and efficient is also lower; Though the underground system efficient of groundwater heat pump air-conditioning is high, it needs groundwater abstraction, will cause the influence that is difficult to recover to phreatic hydrogeology, and can only be applied in the area that the underground water abundance can be recharged again smoothly.The utilization of these two kinds of geothermal energies all has certain limitation.

Summary of the invention

The utility model purpose provides a kind of ground source heat interchanger, and this underground system has been avoided building the boring of One's name is legion, and need not groundwater abstraction but the employing hot pipe technique, through heat pipe, realizes the collection to energy in the underground soil.

Native system mainly is made up of underground heat pipe, wireway, pouring pendular ring pipe, feed tube, liquid pump, drain pipe and some heat conduction annexes; Underground heat pipe upper end connects the thinner wireway of bore, and the lower end is in depth descended in the thermostat layer, is in the peripheral heat conduction annex heat transmission fin of installing of underground heat pipe of underground thermostat layer; Welding is used for strengthening the inside groove of heating surface area on the underground heat pipe inwall, heat pipe bottom under the arrival point of inside groove bottom, and the upper end contacts with pouring pendular ring pipe; Drenching the pendular ring pipe is an annulus that the bottom is outwards routed up; Be installed in underground heat pipe top; Drench pendular ring pipe bottom radius of circle and be slightly less than underground heat pipe radius, drench liquid annulus and underground heat conduction tube wall and formed a liquid storage space that does not seal fully, liquid refrigerant is permeated downwards so that stay pouring liquid seam; Said pouring pendular ring pipe bottom radius of circle is slightly less than underground heat pipe radius, and both differences are decided by said system power size; Feed tube inserts and the connection of pouring pendular ring pipe from the avris of underground heat pipe upper end; Drain pipe inserts through underground heat pipe bottom from the wireway side of underground heat pipe upper end, is connected with the waterproof liquid pump then, and feed tube and the drain pipe port of portion on the ground converge back UNICOM catheter through triple valve; The waterproof liquid pump is installed in underground heat pipe bottom, fixes through the support that is connected with underground heat pipe inwall.

Said underground heat pipe in depth descends in the thermostat layer; Be in the heat pipe outer wall welding heat transmission fin of underground thermostat layer; Landfill heat-conducting medium around the heat pipe outer wall in being in thermostat layer then, underground heat pipe are in the adiabatic medium of landfill around the outer wall of face of land troposphere.

When this ground source heat exchange system absorbed heat, ground triple valve was opened the feed tube branch road, closed the drain pipe branch road.The low temperature liquid condensing agent flows into from feed tube and drenches the pendular ring pipe; Then from drenching the liquid seam along the slowly infiltration downwards of underground heat conduction tube wall; Because infiltration rate is little, quantity is few, so infiltration low temperature liquid condensing agent down always along the inside groove whereabouts of underground heat conduction tube wall, gets into behind the underground thermostat layer heat transmission through underground heat conduction tube wall; The low temperature liquid condensing agent absorbs heat and becomes gaseous state; Physical property according to gaseous material self rises, and gets in the air-conditioning system of ground through wireway, and this underground heat-exchange system endothermic process is accomplished.

When this ground source heat exchange system carried out heat release, ground triple valve was opened the drain pipe branch road, closed the feed tube branch road.The gaseous state condensing agent is owing to the dynamical system on the air-conditioning ground surface is moved to underground heat pipe through wireway; After getting into underground heat pipe; The gaseous state condensing agent carries out heat exchange through underground heat conduction tube wall and underground thermostat layer; Gaseous state condensing agent liquefy falls into the subterranean heat exchanger bottom, is transported to the liquid condensation agent in the air-conditioning system of ground through the waterproof liquid pump that is installed in the subterranean heat exchanger bottom, and this underground heat-exchange system exothermic process is accomplished.

Description of drawings

Fig. 1: underground heat-exchange system overall structure figure;

Fig. 2: underground heat-exchange system middle section figure;

Face of land troposphere; 2, underground thermostat layer; 3, adiabatic medium; 4, heat-conducting medium; 5, waterproof liquid pump; 6, liquid pump support; 7, heat transmission fin; 8, underground heat pipe; 9, drench the liquid seam; 10, drench the pendular ring pipe; 11, wireway; 12, feed tube; 13, drain pipe; 14, inside groove; 15, triple valve; 16, catheter.

The specific embodiment

Native system comprises that mainly underground heat pipe (8), wireway (11), pouring pendular ring pipe (10), feed tube (12), liquid pump (5), drain pipe (13) and some heat conduction annexes constitute; Underground heat pipe (8) upper end connects the thinner wireway (11) of bore; The lower end is in depth descended in the thermostat layer (2); Be in the peripheral heat conduction annex heat transmission fin (7) of installing of underground heat pipe (8) of underground thermostat layer (2); Welding is used for strengthening the inside groove (14) of heating surface area on the inner pipe wall, heat pipe bottom under the arrival point of inside groove (14) bottom, and the upper end contacts with pouring pendular ring pipe (10); Drenching pendular ring pipe (10) is an annulus that the bottom is outwards routed up; Be installed in underground heat pipe (8) top; The bottom radius of circle that drenches pendular ring pipe (10) is slightly less than underground heat pipe (8) radius; Drench pendular ring pipe (10) ring wall and underground heat conduction tube wall and formed a liquid storage space that does not have sealing, liquid refrigerant is permeated downwards so that stay pouring liquid seam (9); Feed tube (12) inserts and pouring pendular ring pipe (10) connection from the avris of underground heat pipe (8) upper end; Drain pipe (13) inserts through underground heat pipe (8) bottom from wireway (11) side of underground heat pipe (8) upper end; Be connected with waterproof liquid pump (5) then, feed tube (12) and drain pipe (13) portion on the ground converge back UNICOM's catheter (16) through triple valve (15); Waterproof liquid pump (5) is installed in (8) portion at the bottom of the underground heat pipe, and is fixing through the support (6) that is connected with underground heat pipe inwall.

Said underground heat pipe (8) in depth descends in the thermostat layer (2); Be in heat pipe (8) the outer wall welding heat transmission fin (7) of underground thermostat layer (2); Landfill heat-conducting medium (4) around heat pipe (8) outer wall in being in thermostat layer (2) then, underground heat pipe (8) are in the adiabatic medium (3) of landfill around the outer wall of face of land troposphere (1).

When this ground source heat exchange system absorbed heat, ground triple valve (15) was opened feed tube (12) branch road, closed drain pipe (13) branch road.The low temperature liquid condensing agent flows into from feed tube (12) and drenches the pendular ring pipe (10); Then from drenching liquid seam (9) along the slowly infiltration downwards of underground heat pipe (8) inwall; Because infiltration rate is little, quantity is few,, get into of the heat transmission of underground thermostat layer (2) back through underground heat conduction tube wall so the low temperature liquid condensing agent under the infiltration falls along the inside groove (14) of underground heat pipe (8) inwall always; The low temperature liquid condensing agent absorbs heat and becomes gaseous state; Physical property according to gaseous material self rises, and gets in the air-conditioning system of ground through wireway (11), and this underground heat-exchange system endothermic process is accomplished.

When this ground source heat exchange system carried out heat release, ground triple valve (15) was opened drain pipe (13) branch road, closed feed tube (12) branch road.The gaseous state condensing agent is owing to the dynamical system on the air-conditioning ground surface is moved to underground heat pipe (8) through wireway (11); After getting into underground heat pipe (8); The gaseous state condensing agent carries out heat exchange through underground heat pipe (8) wall and underground thermostat layer (2); Gaseous state condensing agent liquefy falls into underground heat pipe (8) bottom, is transported to the liquid condensation agent in the air-conditioning system of ground through the waterproof liquid pump (5) that is installed in heat pipe (8) bottom, and this underground heat-exchange system exothermic process is accomplished.

Claims

1. a ground source heat interchanger comprises that mainly underground heat pipe (8), wireway (11), pouring pendular ring pipe (10), feed tube (12), liquid pump (5), drain pipe (13) and some heat conduction annexes constitute; Underground heat pipe (8) upper end connects the thinner wireway (11) of bore; The lower end is in depth descended in the thermostat layer (2); Be in the peripheral heat conduction annex heat transmission fin (7) of installing of underground heat pipe (8) of underground thermostat layer (2); Welding is used for strengthening the inside groove (14) of heating surface area on the inner pipe wall, heat pipe bottom under the arrival point of inside groove (14) bottom, and the upper end contacts with pouring pendular ring pipe (10); Drenching pendular ring pipe (10) is an annulus that the bottom is outwards routed up; Be installed in underground heat pipe (8) top; The bottom radius of circle that drenches pendular ring pipe (10) is slightly less than underground heat pipe (8) radius; Drench pendular ring pipe (10) ring wall and underground heat conduction tube wall and formed a liquid storage space that does not have sealing, liquid refrigerant is permeated downwards so that stay pouring liquid seam (9); Feed tube (12) inserts and pouring pendular ring pipe (10) connection from the avris of underground heat pipe (8) upper end; Drain pipe (13) inserts through underground heat pipe (8) bottom from wireway (11) side of underground heat pipe (8) upper end; Be connected with waterproof liquid pump (5) then, feed tube (12) and drain pipe (13) portion on the ground converge back UNICOM's catheter (16) through triple valve (15); Waterproof liquid pump (5) is installed in (8) portion at the bottom of the underground heat pipe, and is fixing through the support (6) that is connected with underground heat pipe inwall.

2. a kind of ground source heat interchanger according to claim 1; It is characterized in that: said underground heat pipe (8) in depth descends in the thermostat layer (2); Be in heat pipe (8) the outer wall welding heat transmission fin (7) of underground thermostat layer (2); Landfill heat-conducting medium (4) around heat pipe (8) outer wall in being in thermostat layer (2) then, underground heat pipe (8) are in the adiabatic medium (3) of landfill around the outer wall of face of land troposphere (1).

3. a kind of ground source heat interchanger according to claim 1; It is characterized in that: said feed tube (12) and drain pipe (13) converge to catheter (16) on ground through triple valve (15); When liquid got into, triple valve (15) was opened feed tube (12) branch road, and drain pipe (13) branch road breaks off; When liquid flowed out, triple valve (15) was opened drain pipe (13) branch road, and feed tube (12) branch road breaks off.

4. according to the described a kind of ground source heat interchanger of claim 1, it is characterized in that: said pouring pendular ring pipe (10) bottom radius of circle is slightly less than underground heat pipe (8) radius, and both differences are decided by said system power size.